Exoplanetary searches with gravitational microlensing: Polarization issues

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Exoplanetary searches with gravitational microlensing: Polarization issues

Zakharov, Alexander F. / Ingrosso, Gabriele / De Paolis, Francesco / Nucita, Achille A. / Strafella, Francesco / Calchi Novati, Sebastiano / Jetzer, Philippe

Abstract

Abstract There are different methods for finding exoplanets such as radial spectral shifts, astrometrical measurements, transits, timing etc. Gravitational microlensing (including pixel-lensing) is among the most promising techniques with the potentiality of detecting Earth-like planets at distances about a few astronomical units from their host star or near the so-called snow line with a temperature in the range 0–100 ^°C on a solid surface of an exoplanet. We emphasize the importance of polarization measurements which can help to resolve degeneracies in theoretical models. In particular, the polarization angle could give additional information about the relative position of the lens with respect to the source.

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Document information

Title :

Exoplanetary searches with gravitational microlensing: Polarization issues

Contributors:

Zakharov, Alexander F. (author) / Ingrosso, Gabriele (author) / De Paolis, Francesco (author) / Nucita, Achille A. (author) / Strafella, Francesco (author) / Calchi Novati, Sebastiano (author) / Jetzer, Philippe (author)

Published in:

Advances in Space Research ; 54 , 7 ; 1319-1325

Publication date :

2013-01-01

Size :

7 pages

ISSN :

0273-1177

DOI :

https://doi.org/10.1016/j.asr.2013.12.013

Type of media :

Article (Journal)